keywords.py 1.9 KB

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  1. #!/usr/bin/env python
  2. #
  3. # Copyright 2007 Neal Norwitz
  4. # Portions Copyright 2007 Google Inc.
  5. #
  6. # Licensed under the Apache License, Version 2.0 (the "License");
  7. # you may not use this file except in compliance with the License.
  8. # You may obtain a copy of the License at
  9. #
  10. # http://www.apache.org/licenses/LICENSE-2.0
  11. #
  12. # Unless required by applicable law or agreed to in writing, software
  13. # distributed under the License is distributed on an "AS IS" BASIS,
  14. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15. # See the License for the specific language governing permissions and
  16. # limitations under the License.
  17. """C++ keywords and helper utilities for determining keywords."""
  18. try:
  19. # Python 3.x
  20. import builtins
  21. except ImportError:
  22. # Python 2.x
  23. import __builtin__ as builtins
  24. if not hasattr(builtins, 'set'):
  25. # Nominal support for Python 2.3.
  26. from sets import Set as set
  27. TYPES = set('bool char int long short double float void wchar_t unsigned signed'.split())
  28. TYPE_MODIFIERS = set('auto register const inline extern static virtual volatile mutable'.split())
  29. ACCESS = set('public protected private friend'.split())
  30. CASTS = set('static_cast const_cast dynamic_cast reinterpret_cast'.split())
  31. OTHERS = set('true false asm class namespace using explicit this operator sizeof'.split())
  32. OTHER_TYPES = set('new delete typedef struct union enum typeid typename template'.split())
  33. CONTROL = set('case switch default if else return goto'.split())
  34. EXCEPTION = set('try catch throw'.split())
  35. LOOP = set('while do for break continue'.split())
  36. ALL = TYPES | TYPE_MODIFIERS | ACCESS | CASTS | OTHERS | OTHER_TYPES | CONTROL | EXCEPTION | LOOP
  37. def IsKeyword(token):
  38. return token in ALL
  39. def IsBuiltinType(token):
  40. if token in ('virtual', 'inline'):
  41. # These only apply to methods, they can't be types by themselves.
  42. return False
  43. return token in TYPES or token in TYPE_MODIFIERS